web page is trying to open a site on your intranet

I have a web site that work with external Credit Card Processing (cybers开发者_运维知识库ource) when user want to buy the webpage redirect to cybersource the user fill his details and click buy, the page redirect to my web site and show this message

"the current web page is trying to open a site on your intranet do you want to allow this"

the user need to click yes or no how can i avoid this message to show up?

Thanks

My first thought - are you testing this with a server that is on your own intranet? If so then it's a spurious warning that doesn't require any action from you to change. I don't think that many end-users will be using your site from the same intranet as the production webserver. :-)